FGU was founded in 1975 by Scott Bizar, and has been noted for producing detailed yet playable role-playing games, ones in which getting your head around the complexity enhances the creation of a believable 'alternate reality' within the game setting. New production ceased in 1987, although reprints have continued to be released, and a large number of products are available from DriveThruRPG in PDF format.

In 2008, the company was reborn, and some old and rewritten material is already becoming available.